The mother of a Brazilian woman who was thrown to her death from a bridge by bungee jump instructors who forgot to attach the rope paid a heartbreaking tribute to her 'princess' after the tragedy. 

Valdenia Rodrigues took to social media after her daughter Maria Eduarda Rodrigues de Freitas, 21, was thrown from a bridge in Sao Paulo, Brazil on Sunday in a horror on-camera incident. 

'My beloved daughter, today alone I wanted to hug you more than a thousand times,' she wrote. 

'How much your departure hurts me. I love you eternally, my princess. And thank you so much for being a part of my life for these 21 years. 

'What an honor it was to hear you call me mom. God, thank you for this privilege.'

Her post received over half a million likes on Instagram after her daughter's tragic death went viral across social media, as witnesses shared horrific footage of her being thrown over the bridge without an attached cord. 

Brazilian authorities have since arrested the three men who held Freitas over their heads and charged them with homicide with intent. 

They were named as Luis Felipe Feliciano Egoroff, 32, Vitor de Freitas Goncalves, 27, and Maicon Fernandes Cintra, 42.

Their attorney admitted the men were confused over whose ultimate responsibility it was to attach the bungee cord, which was seen in footage laying at their feet moments after they flung Freitas over the 130-foot drop. 

Freitas was buried in Sao Paolo on Sunday, with Brazilian authorities launching an ongoing investigation into how the tragedy unfolded. 

In a separate Instagram story hours after her daughter's funeral, Freitas's mother anguished over the fatal mistake that the bungee instructors made by not attaching the bungee cord. 

'That damn rope took you away from me forever,' she wrote. 

'My beloved daughter, you are gone and here there is only pain and longing. I love you forever.'

The shocking incident stunned social media as footage of Freitas's final moments were viewed by millions, drawing scrutiny on the safety protocols of the dangerous industry in the South American country. 

Authorities said they brought six people in for questioning following the incident, and charged three of them with homicide with intent. 

Two of the instructors allegedly tried to flee the scene after they realized the grave error, but they were tracked down by a military helicopter and captured in a nearby wooded area, local media reports said. 

The bungee instructors' attorney told Brazilian news outlet Metropoles that after he spoke with the three men, none of them could tell him who was responsible for securing Freitas' rope.

The attorney said that all three had helped Freitas before her jump, but they were unsure who made the final safety checks before disaster struck.

'I spoke with them, and they were all responsible for the inspection. First, they put on a kind of vest, and then the rope,' the attorney said.

Matthew Lawrence, a bungee safety consultant and President of Bungee Consultants International, who had no involvement with the incident, told the Daily Mail the fatal error may have stemmed from a lack of proper safety precautions in Brazil, describing it as 'as egregious a mistake as you could ever imagine in anything like that.'

He said a number of high-profile errors in decades past in the US have led to lawsuits that 'got rid of the cowboys' who would make such mistakes, but that is not the case in the South American nation.

'It would be very rare and very unusual if someone died bungee jumping at a professional bungee jumping location in the US,' he said. 'That's not gonna happen.'

Amid mounting questions over how the workers failed to attach the rope, their attorney said they had been organizing bungee jumps for over six years - with Egoroff's Instagram showing he often performed adrenaline-fueled stunts on the same abandoned bridge where Freitas was thrown from. 

The attorney said the rope was attached to the bridge, but 'for some reason' they never attached it to de Freitas or checked her harness before flinging her to her death.

Officials said over 20 people were on the bridge at the time, including de Freitas's horrified boyfriend, who witnessed her final moments.

While the suspect's attorney said they each helped de Freitas before the jump, Sao Paolo police deputy Andrea Dantas Levy said two of the men alleged they had a 'blackout' and could not recall attaching the rope.

'They said they can’t remember where and when the fault occurred, who would have to have put it, and didn’t,' Levy told the O Globo newspaper.

'The third, who held [her] legs, said he was only called in to help with the throw.'

Shockingly, Rodrigues de Freitas did not die immediately after plunging more than 100 feet to the ground, the nurse who tried to save her told Brazilian TV.

Rayza Dias, a nurse at the scene, said de Freitas was suffering horrific injuries but had not yet died when she raced to her aid, and said it was difficult to get to her in the rural area.

'I scraped my whole hand because there's a steep slope down there and only one rope for us to climb down,' she told news show Domingo Espetacular on Sunday. 'It was all covered in mud. I kept going down, down, we walked all the way.'

Dias described how the victim was breathing heavily and still had a weak pulse when she tried to give her life-saving care.

She began to get emotional as she said: 'I even talked to her. I have a habit of joking and saying, "Nobody dies on my shift." And I told her, "Duda, nobody dies on my shift." Even though I wasn't on my shift there.'